Home / 8,348.28-11,520.60-4,622.28

Finding the Fourth Proportional to 8,348.28, 11,520.60 and 4,622.28

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Solution

The fourth proportional to 8,348.28, 11,520.60 and 4,622.28 is: 6,378.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,348.28 : 11,520.60 = 4,622.28 : x
  2. Step 2: Convert to fraction form
    8,348.28/11,520.60 = 4,622.28/x
  3. Step 3: Cross multiply
    8,348.28x = 11,520.60 × 4,622.28
  4. Step 4: Simplify right side
    8,348.28x = 53,251,438.97
  5. Step 5: Solve for x
    x = 53,251,438.97/8,348.28
  6. Step 6: Final answer
    x = 6,378.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.